Lyophobic heterogeneous systems, based on porous fluids made of ordered nanoporous particles immersed in a non-wetting liquid, constitute systems of interest for exploring wetting, drying, and coupled transport phenomena in nanometric confinement. To date, most experimental studies on the forced filling and spontaneous emptying of lyophobic nanometric pores, at pressures of several tens of MPa, have been conducted in a quasi-static regime. However, some studies have shown that dynamical measurements are essential to shed light on the rich physics of these phenomena. We describe here a dynamical calo-porosimeter that allows for the simultaneous mechanical and calorimetric characterization of filling and emptying cycles over four decades of timescales, ranging from a few milliseconds to 10 seconds. This thermally regulated instrument can be operated between −5 and 70°C. It also enables the study of a given porous material successively with different liquids by switching from one to another. The characterization of wetting dynamics, the study of slow kinetics due to changes in solute concentration, and the rapid measurement of the heat of wetting, among other thermal properties, are presented as examples of the possible applications of this apparatus.
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October 2024
Research Article|
October 29 2024
A dynamical calo-porosimeter to characterize wetting and drying processes in lyophobic nanometric pores
Loïc Michel;
Loïc Michel
(Conceptualization, Data curation, Formal analysis, Investigation)
Univ. Grenoble Alpes, CNRS, LIPhy
, f-38000 Grenoble, France
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Jérôme Giraud;
Jérôme Giraud
(Conceptualization, Resources)
Univ. Grenoble Alpes, CNRS, LIPhy
, f-38000 Grenoble, France
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William Chèvremont
;
William Chèvremont
(Conceptualization, Data curation, Formal analysis, Investigation, Software)
Univ. Grenoble Alpes, CNRS, LIPhy
, f-38000 Grenoble, France
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Valentin Gérard
;
Valentin Gérard
(Conceptualization, Data curation, Formal analysis, Investigation, Software)
Univ. Grenoble Alpes, CNRS, LIPhy
, f-38000 Grenoble, France
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Heloïse Ugo
;
Heloïse Ugo
(Conceptualization, Data curation, Formal analysis, Software)
Univ. Grenoble Alpes, CNRS, LIPhy
, f-38000 Grenoble, France
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Maël Picard
;
Maël Picard
(Data curation, Formal analysis, Investigation)
Univ. Grenoble Alpes, CNRS, LIPhy
, f-38000 Grenoble, France
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Dolachai Boniface
;
Dolachai Boniface
(Software, Visualization, Writing – review & editing)
Univ. Grenoble Alpes, CNRS, LIPhy
, f-38000 Grenoble, France
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Élisabeth Charlaix
;
Élisabeth Charlaix
(Validation)
Univ. Grenoble Alpes, CNRS, LIPhy
, f-38000 Grenoble, France
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Cyril Picard
Cyril Picard
a)
(Conceptualization, Funding acquisition, Supervision, Validation, Visualization, Writing – original draft, Writing – review & editing)
Univ. Grenoble Alpes, CNRS, LIPhy
, f-38000 Grenoble, France
a)Author to whom correspondence should be addressed: cyril.picard@univ-grenoble-alpes.fr
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a)Author to whom correspondence should be addressed: cyril.picard@univ-grenoble-alpes.fr
Rev. Sci. Instrum. 95, 105126 (2024)
Article history
Received:
July 01 2024
Accepted:
October 09 2024
Citation
Loïc Michel, Jérôme Giraud, William Chèvremont, Valentin Gérard, Heloïse Ugo, Maël Picard, Dolachai Boniface, Élisabeth Charlaix, Cyril Picard; A dynamical calo-porosimeter to characterize wetting and drying processes in lyophobic nanometric pores. Rev. Sci. Instrum. 1 October 2024; 95 (10): 105126. https://doi.org/10.1063/5.0226398
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